An algorithm for a near real-time data processing of GPS common-view observations

	An algorithm for a near real-time data processing of GPS common-view observations
	Yang, XH; Hu, YH; Li, ZG; Li, XH; Zheng, XW
	2003
发表期刊	CHINESE ASTRONOMY AND ASTROPHYSICS
ISSN	0275-1062
卷号	27 期号:4 页码:470-480
摘要	Near real-time transfer of GPS common-view data is no longer a problem, but near real-time data processing of the data still calls for study, because it is not yet achieved by the usual smoothing and filtering techniques. Based on the characteristics of the GPS common-view data, a Kalman filtering algorithm is designed for estimating the time difference between two sites, while greatly reducing the observational noise. The algorithm is applied to the time difference between the National Time Service Center (NTSC) of China and the Communications Research Laboratory (CRL) of Japan (over 2000 km apart), and to that between the CRL and the Korean Research Institute of Standards and Sciences (KRIS) (over 1000 km apart). The root mean square errors of the results obtained by the Kalman filter relative to those obtained from the Circular T of BIPM are less than 2.9 ns and 2.6 ns, in the two cases. Further, it is pointed out that, when multi-site data within a common-view network are available we can further improve the accuracy of the time comparisons by indirect observation adjustment. This statement was justified by application to the data from all three stations, i.e. NTSC, CRL, and KRIS.
部门归属	高精度时间传递与精密测定轨研究室
关键词	Astrometry Methoda : Data Analysis Methods : Miscellaneous
收录类别	SCI
语种	英语
WOS记录号	WOS:000186654100012
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/4664
专题	高精度时间传递与精密测定轨研究室
推荐引用方式 GB/T 7714	Yang, XH,Hu, YH,Li, ZG,et al. An algorithm for a near real-time data processing of GPS common-view observations[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2003,27(4):470-480.
APA	Yang, XH,Hu, YH,Li, ZG,Li, XH,&Zheng, XW.(2003).An algorithm for a near real-time data processing of GPS common-view observations.CHINESE ASTRONOMY AND ASTROPHYSICS,27(4),470-480.
MLA	Yang, XH,et al."An algorithm for a near real-time data processing of GPS common-view observations".CHINESE ASTRONOMY AND ASTROPHYSICS 27.4(2003):470-480.

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